MacOS matplotlib broken after `pip install matplotlib --upgrade` to version 2.1.0

Community matplotlib-users
1

My OS X python installation is through homebrew. I then add python software
using pip. I recently upgraded matplotlib from version 1.4.3 to 2.1.0 via
`pip install matplotlib --upgrade`, and now matplotlib gives me this error
when I try to make a basic plot:

    In [1]: plt.plot(np.arange(10))

···

---------------------------------------------------------------------------
    TypeError Traceback (most recent call
last)
    <ipython-input-1-a81699eb47e8> in <module>()
    ----> 1 plt.plot(np.arange(10))

    /usr/local/lib/python2.7/site-packages/matplotlib/pyplot.pyc in
plot(*args, **kwargs)
       3227 @_autogen_docstring(Axes.plot)
       3228 def plot(*args, **kwargs):
    -> 3229 ax = gca()
       3230 # Deprecated: allow callers to override the hold state
       3231 # by passing hold=True|False

    /usr/local/lib/python2.7/site-packages/matplotlib/pyplot.pyc in
gca(**kwargs)
        957 matplotlib.figure.Figure.gca : The figure's gca method.
        958 """
    --> 959 return gcf().gca(**kwargs)
        960
        961 # More ways of creating axes:

    /usr/local/lib/python2.7/site-packages/matplotlib/pyplot.pyc in gcf()
        586 return figManager.canvas.figure
        587 else:
    --> 588 return figure()
        589
        590

    /usr/local/lib/python2.7/site-packages/matplotlib/pyplot.pyc in
figure(num, figsize, dpi, facecolor, edgecolor, frameon, FigureClass,
clear, **kwargs)
        554 # FigureManager base class.
        555 if matplotlib.is_interactive():
    --> 556 draw_if_interactive()
        557
        558 if _INSTALL_FIG_OBSERVER:

    /usr/local/lib/python2.7/site-packages/matplotlib/backend_bases.pyc in
draw_if_interactive(cls)
        183 manager = Gcf.get_active()
        184 if manager:
    --> 185 cls.trigger_manager_draw(manager)
        186
        187 @classmethod

    TypeError: unbound method trigger_manager_draw() must be called with
_BackendMac instance as first argument (got FigureManagerMac instance
instead)

I am not sure how to diagnose this. I do have a working Python 3 matplotlib
however.

Is this actually a bug within version 2.1.0 of matplotlib? Thanks
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2

Hi Victor,

This is apparently a bug that will be patched soon. I?d roll back to 2.0.2 in the meantime if you aren?t comfortable working off github?.

Cheers, Jody

···

On Oct 12, 2017, at 8:59 AM, Victor Zhao <vzhao23 at gmail.com> wrote:

My OS X python installation is through homebrew. I then add python software using pip. I recently upgraded matplotlib from version 1.4.3 to 2.1.0 via `pip install matplotlib --upgrade`, and now matplotlib gives me this error when I try to make a basic plot:

    In [1]: plt.plot(np.arange(10))
    ---------------------------------------------------------------------------
    TypeError Traceback (most recent call last)
    <ipython-input-1-a81699eb47e8> in <module>()
    ----> 1 plt.plot(np.arange(10))
    
    /usr/local/lib/python2.7/site-packages/matplotlib/pyplot.pyc in plot(*args, **kwargs)
       3227 @_autogen_docstring(Axes.plot)
       3228 def plot(*args, **kwargs):
    -> 3229 ax = gca()
       3230 # Deprecated: allow callers to override the hold state
       3231 # by passing hold=True|False
    
    /usr/local/lib/python2.7/site-packages/matplotlib/pyplot.pyc in gca(**kwargs)
        957 matplotlib.figure.Figure.gca : The figure's gca method.
        958 """
    --> 959 return gcf().gca(**kwargs)
        960
        961 # More ways of creating axes:
    
    /usr/local/lib/python2.7/site-packages/matplotlib/pyplot.pyc in gcf()
        586 return figManager.canvas.figure
        587 else:
    --> 588 return figure()
        589
        590
    
    /usr/local/lib/python2.7/site-packages/matplotlib/pyplot.pyc in figure(num, figsize, dpi, facecolor, edgecolor, frameon, FigureClass, clear, **kwargs)
        554 # FigureManager base class.
        555 if matplotlib.is_interactive():
    --> 556 draw_if_interactive()
        557
        558 if _INSTALL_FIG_OBSERVER:
    
    /usr/local/lib/python2.7/site-packages/matplotlib/backend_bases.pyc in draw_if_interactive(cls)
        183 manager = Gcf.get_active()
        184 if manager:
    --> 185 cls.trigger_manager_draw(manager)
        186
        187 @classmethod
    
    TypeError: unbound method trigger_manager_draw() must be called with _BackendMac instance as first argument (got FigureManagerMac instance instead)

I am not sure how to diagnose this. I do have a working Python 3 matplotlib however.

Is this actually a bug within version 2.1.0 of matplotlib? Thanks
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